Highly Electronegative Element-Rich COF Modified Separator Achieves High-Performance of Lithium–Sulfur Batteries

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(22), P. 13813 - 13818

Published: Nov. 1, 2024

In this work, a covalent organic framework (COF) containing high electronegativity (TTBT-COF) was prepared to improve the separator of commercial Celgard lithium–sulfur batteries (LSBs). The LSBs with TTBT-COF had initial capacity 1033 mAh g–1 at 0.1 C and remained 530 after 500 cycles 1 C. average attenuation rate per cycle is 0.057%. addition, they exhibit 616 2 improved can significantly inhibit shuttle effect polysulfides, thereby improving stability coulomb efficiency battery, providing another strategy for construction high-performance LSBs.

Language: Английский

Tungsten Oxide Nanowire Clusters Anchored on Porous Carbon Fibers as a Sulfur Redox Mediator for Lithium-Sulfur Batteries

Nanoscale Advances, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 24, 2024

WO 3 nanowire clusters anchored on core–shell porous carbon fibers capture lithium polysulfides and function as a redox mediator, facilitating sulfur conversion.

Language: Английский